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<ul class="simpleTree">
    <li class="root" id='0'>
        <span class='treeTip'>请选择产品</span>
        <ul>
            <li id='-1'>
                <span type='0'>产品总目录</span>
                <ul>
                    <li id='-9999' type='-9999'>
                        <span>产品分组</span>
                        <ul class='ajax'>
                            <li id='initLoadUrl'></li>
                        </ul>
                    </li>
                    <li id='-9999' type='-9999'>
                        <span>常用分组</span>
                        <ul>
                            <li id='29'>
                                <span type='0'>电器产品</span>
                                <ul>
                                    <li id='30'>
                                        <span type='0'>洗衣机</span>
                                    </li>
                                    <li id='31'>
                                        <span type='0'>冰箱</span>
                                    </li>
                                </ul>
                            </li>
                        </ul>
                    </li>
                </ul>
            </li>
        </ul>
    </li>
</ul>
<ul>
	<li>单击 + 打开目录</li>
	<li>单击 - 关闭目录</li>
	<li>双击确定选中并关闭对话框</li>
</ul>